ipad won't find my printer

Is the printer AirPrint compatible? If not the iPad just won't see it, you'd need the maker's app instead. If it is, it's nearly always a network thing. The iPad and printer have to be on the same wifi, and a guest network often blocks devices from seeing each other. Printers also sometimes drop back to their own setup network after a power cut. Turn the printer off and on, check on its screen which network it's joined, then try again.